Mastercard on Wednesday expanded its stablecoin settlement network to five blockchains — Ethereum, Solana, Base, XRP Ledger, and Tempo — and added six regulated stablecoins beyond USDC, moving the world's second-largest card network from a single-chain pilot to a multi-chain, around-the-clock settlement infrastructure.
The expansion enables issuers and acquirers to settle card transactions outside normal banking hours, including intraday, holiday, and weekend windows that traditional correspondent banking cannot reach. The announcement was published June 3, 2026.
"The next phase of stablecoin adoption is about real-world utility, especially in settlement, where timing and liquidity matter most," said Raj Dhamodharan, Mastercard's EVP of Blockchain and Digital Assets. "By introducing intraday and weekend settlement options across our global network, we're expanding how partners manage liquidity and operate in an always-on digital economy."
Seven stablecoins, five chains
The network now supports settlement in USDC (Circle), RLUSD (Ripple), PYUSD, USDG, and USDP (all Paxos-issued), and SoFiUSD — a dollar-backed token that neobank SoFi launched just this week. USDC had been available in select markets under an earlier arrangement; RLUSD had been the subject of a pilot with Ripple and Gemini on the XRP Ledger last fall. This announcement formalizes and substantially broadens both.
The five settlement blockchains span the dominant smart contract platforms in crypto. Ethereum is the original settlement layer. Solana brings high throughput and sub-second finality. Base is Coinbase's Ethereum layer-2, designed for consumer-scale applications. The XRP Ledger is Ripple's payments-native network. Tempo is a stablecoin-focused chain built explicitly for cross-border payments.
Initial live coverage covers the U.S. and Latin America. First movers include ARQ (formerly DolarApp), CBW Bank, Cross River, Lead Bank, and Nuvei. Mastercard says it expects further geographic expansion through the rest of 2026.
Why the partners are talking
The coordinated statements from Mastercard's stablecoin partners signal how each issuer reads this moment.
Circle CCO Kash Razzaghi framed it as an infrastructure gap being closed: "As demand grows for faster and more flexible movement of money, organizations are increasingly seeking infrastructure that can operate beyond traditional banking hours. Mastercard's expanded settlement capabilities help meet that need, offering greater choice in how value is transferred and settled."
Ripple SVP of Stablecoins Jack McDonald went further: "Mastercard's move into on-chain settlement is a landmark validation that blockchain technology is ready for the world's most critical payment infrastructure."
That phrase — "world's most critical payment infrastructure" — is not hyperbole in context. Mastercard handles over 150 billion transactions per year across roughly 3.4 billion cards. When a network of that scale operationalizes multi-chain stablecoin settlement, it shifts the category from experiment to standard-setting.
What changed from the pilot
Mastercard had an existing bilateral arrangement with Circle for USDC settlement in certain markets. The October 2024 announcement with Ripple and Gemini covered RLUSD on the XRP Ledger. This week's release connects those threads into a single settlement layer: one framework, seven stablecoins, five chains, operating continuously.
The practical difference is significant for treasury operations. Card settlement under the existing system batches overnight and pauses over weekends and public holidays. Intraday settlement windows reduce float risk for acquirers holding unsettled funds. Weekend and holiday coverage eliminates gaps in international reconciliation. For Latin American issuers operating across multiple time zones and holiday calendars, the value proposition is immediate.
The stock dip
Mastercard shares fell roughly 2.6% on the day of the announcement, trading around $464.87. The move ran against the general tone of the release and may reflect broader market conditions or profit-taking; it does not appear to be a direct market judgment on the stablecoin expansion itself. Mastercard's core business — card transaction fees — is structurally unaffected by the settlement rails used downstream.
What Solana and Base being on this list means
Of the five chains, Solana and Base deserve specific attention for what their inclusion signals.
Base is Coinbase's layer-2 network. Its presence here marks the second major TradFi institution after PayPal — which issues PYUSD partly on Base — treating Coinbase's infrastructure as enterprise-grade. For Base's bid to become the default layer for consumer-facing crypto payments, this is meaningful real-world validation.
Solana is the sharper signal. It has not historically been the institutional first choice; Ethereum's longer track record and larger developer ecosystem usually dominated that conversation. Mastercard selecting Solana alongside Ethereum and Base reflects a shift in how institutional integrators evaluate chains: throughput, finality time, and transaction cost now rank alongside ecosystem maturity. For Solana's DeFi ecosystem — which crossed $9B in TVL in recent months — Mastercard's operational endorsement is the kind of external credibility that accelerates institutional inflows.
Together, the five-chain footprint reflects something that TradFi has mostly avoided committing to: multi-chain isn't a transitional state. It is the architecture. Mastercard is not waiting for one chain to win. It built settlement plumbing that works across the stack.
For the payments industry, the implications reach beyond Mastercard. Visa has its own stablecoin settlement work on Solana. The two largest card networks are now both running on-chain rails in production. The question for every bank, processor, and payments fintech is no longer whether on-chain settlement is viable — it is how far behind they are.
This story is based on primary reporting from Decrypt (June 3, 2026) and direct company statements from Mastercard, Circle, and Ripple.